disable onselect code example

Example 1: javascript disable right click

document.addEventListener('contextmenu', event => event.preventDefault());

Example 2: jquery disable checkbox

$(function() {
  enable_cb();
  $("#group1").click(enable_cb);
});

function enable_cb() {
  if (this.checked) {
    $("input.group1").removeAttr("disabled");
  } else {
    $("input.group1").attr("disabled", true);
  }
}